32385649 has 4 divisors (see below), whose sum is σ = 32434164. Its totient is φ = 32337136.

The previous prime is 32385643. The next prime is 32385659. The reversal of 32385649 is 94658323.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24433249 + 7952400 = 4943^2 + 2820^2 .

It is a cyclic number.

It is not a de Polignac number, because 32385649 - 2³ = 32385641 is a prime.

It is a super-2 number, since 2×32385649² = 2097660522302402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32385641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23242 + ... + 24595.

It is an arithmetic number, because the mean of its divisors is an integer number (8108541).

Almost surely, 2^32385649 is an apocalyptic number.

It is an amenable number.

32385649 is a deficient number, since it is larger than the sum of its proper divisors (48515).

32385649 is an equidigital number, since it uses as much as digits as its factorization.

32385649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48514.

The product of its digits is 155520, while the sum is 40.

The square root of 32385649 is about 5690.8390418285. The cubic root of 32385649 is about 318.7504952446.

The spelling of 32385649 in words is "thirty-two million, three hundred eighty-five thousand, six hundred forty-nine".